Slug-trimming mechanism for line-casting machines.



w. E. BERTRAM.

SLUGTRIMIYZING MECHANISM FOR LINE CASTING MAGHINES.

APPLICATION FILED MARTIS, 1913.

Patented Jan. 12, 1915. 1

2 SHEETS-SHEET 1.

INVENT-OR [177 ATTORY WITNESSES: I

I W. E. BERTRAM. SLUG TRIMMING MECHANISM FOR LINE CASTING MACHINES.

Patented Jan. 12, 1915.

vAPPLICATION FILED MAR-15', 1913.

2 SHEETS-SHEET 2.

m E OR 202 ZZmznZI 81m W 05 ATTORNEY ,r'rn snare a WILLIAM E. BERTRAM, OF BROOKLYN, NEW YORK, ASSIGNOR TO INTERNATIONAL- TYPESETTING MACHINE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented Jan.12, 1915.

Application filed March 15, 1913. Serial No. 754,661.

To all whom it may concern Be it known that I, WILLIAM a citizen of the United States, residing at Brooklyn,- in the county of Kings and State of New York, have invented new and useful Improvements in Slug-Trimming Mechanism for Line-Casting Machines, of which the following is a specification.

This invention relates to improvements in line casting machines and more particularly to the trimming knives slugs are trimmed evenly and to the desired thickness, one of the trimming knives being mounted on a slide which is adjustable to enable setting of the knives to trim slugs to difierent standard thicknesses.

One of the objects of the invention is to provide improved bearings for mounting the knife-carrying slide whereby the latter is guided to slide accurately, and deflection or deviation of the slide and its knife, due

to play, is avoided, these bearings beingdurable and easily and inexpensively made and fitted.

Another object of the invention is to pro- -vide auxiliary adjusting means which is independent of the means which sets the knives for slugs of different standard thicknesses whereby the knives may be set quickly, easily and accurately to trim slugs of odd or irregular. thicknesses, and may be readily returned to any of the standard settings.

To these and other ends, the invention consists in certain improvements, and combinations and arrangements of parts, all as will be hereinafter more fully described, the novel. features being pointed out particularly in the claims at the end of the specification.

In the accompanying drawing :-Figure 1 is a front elevation of slug-trimming mechanism embodying the present invention, one

of the slide bearings being shown in section; Fig. 2 is a detail sectional view of the auxiliary adjusting means for setting the knives to trim slugs of odd 'or irregular sizes; Figs. 3 and 4 represent transverse sections on the lines A -A and B-B respectively, of Fig. 2; Fig. 5 represents a horizontal section through the upper portion of the trimming mechanism; Fig. 6 represents a central horizontal section of the same.

Similar arts are designated by the same reference c aracters in t e several views. a

E. BERTRAM,

whereby the Slug-trimming mechanism embodying the I present invention is adapted for use generally n connection with line casting machines of d fi'erent types, although it is especially applicable to those of the well known linotype class, and in that embodiment of the invention shown in the accompanying drawing, the present improvements are applied to slug-trimming mechanism of the same general type as that disclosed in my prior application, Serial No. 661,936, filed November 23, 1911.

In line casting machines, the slugs are cast in a mold and are subsequently ejected from the mold by an ejector blade which pushes the slug edgewise therefrom. This e ector blade is commonly used to force each slug between a pair of parallel knives which serve to trim the flat sides of the slug evenly and to the desired thickness. It is common in such machines to employ molds capable of casting slugs of different sizes and the knives of the trimming mechanism are ad. justable accordingly.

In that embodiment of the invention shown in the present instance, 1 designates the knife block or main bracket which supports the trimming mechanism in proper re lation with the cooperating mechanisms of the machine, this knife block being usually fastened to the vise frame of the machine and having one of the trimming knives 3 which is usually stationary, fixed thereto. A slide 2 -is mounted on the knife block and this slide carries the other trimming knife 3. This trimming knife is adjustably mounted on the slide whereby it may be positioned thereon correctly and compensa tion may be made for sharpening of the knife. In the present instance, clamping screws 4 extend through slots or enlarged openingsin the knife and are secured in the 6 are located toward the head of the trimming mechanism and are suitably spaced laterally with respect to one another. It is also preferable to employ a third bearing located toward the rear or tail of the trimming mechanism, this bearing embodying a cylindrical pin 8 which is fixed by a key 8 in a bore formed in the slide 2, and the rear portion of this pin 8 fits closely and is slidable in a bore formed in the lmife block. By this arrangement, the head pins 6 project forwardly to engage the knife-carrying slide, while the rear pin 8 projects rearwardly from the knife-carrying slide and to the knife block, and hence the length of the bearing area will be measured from the forward ends of the head pins to the rear end of the tail pin, and deflection of the slide, due to any play between it and the knife block, will be unappreciable. By employing a plurality of bearing pins, rocking or rotary deflection between the slide and the knife block is avoided. The cylindrical bearing pins are inexpensive to make and fit, the alined bores in the slide and lniife block being readily formed by drilling and reaming while the slide and block are held in the relation in which they will be used in the machine.

Any suitable means may be used to shift the slide for the purpose of adjusting the knives to trim slugs of different standard sizes, a lever 9 being shown inthe present instance which is pivoted at 10 to the lmife block, and has a portion 11 arranged to ope i'ate in a notch 12 formed in the slide, rocking of the lever, about its pivot obviously shifting the slide and the knife 3 carried thereby. Difi'erent means may be employed for setting the slide for the trimming of slugs 'of diflerent standard sizes. In the present instance I have shown knifesetting means similar to that embodied in my prior application referred to above, the knife block 1 being formed with. a series of apertures 13 which are graduated according to the variations between the standard thicknesses of slugs while the slide 2 is formed with a set of apertures 14, an aperture of each set registering when the slide has been set for the trimming of a slug of any of the standard thiclmesses, and a pin 15 is adapted to be inserted into the registering apertures and thereby retain the slide a a, u at the-desired standard setting.

Occasionally it becomes necessary to adjust the trimming knife to some position.

other than one of the standard settings. The present invention provides an auxiliary setting means whereby this result can be accomplished independently of the standard setting means and without requiring a delicate adjustment or re-adjustment of the knife. In the construction shown, the rear pin 8 is formed with a longitudinal bore through which a rod 16 extends, this rod being fixed at one end to the knife block 1, while its opposite end projects beyond the pin 8 and has a collar 17 fitted slidably thereon. Relative rotation between the rod 16 and the collar 17 is prevented by a key 18 which is fitted in the collar and is movable longitudinally in a keyway formed in the rod. The key is held within the collar by a pin 19, and a clamping screw 20 is provided in the collar and arranged to operate upon the key' 18 to prevent longitudinal movement of the collar on the rod when the clamping screw is tightened. The collar is formed with a sleeve 21, and a nut 22 is threaded on the sleeve, the pin 8 having a flange 23 which abuts at its rear end against the nut and a gib or retaining ring 24: is secured to the nut 22 and cooperates with the forward side of the flange 23 whereby the nut 22 is coupled to the pin 8 although these parts are relatively rotatable. A locking nut 25 is also preferably threaded on the sleeve 21 of thecollar and arranged to cooperate with the nut 22 to retain the latter in any position in which it may be set. Rotation of the nut 22 relatively to the collar 17, while the latter is clamped immovably on the rod 16, will produce axial movement of the pin 8, and by virtue of the connection of this rod to the slide 2, corresponding movement will be imparted to the slide as will hereinafter appear. In order to facilitate the setting and re-setting of the nut 22 of the auxiliary setting means, said nut is .l

preferably graduated or provided with a scale to cooperate with an indicator or pointer 26 fixed to the non-rotatable collar 17. The collar 17, nut 22, and cooperating parts constitute one form of a coupling to operatively connect the pin 8 and the rod 16 when the auxiliary setting means is in use, said pin and rod being normally uncoupled or disconnected when the standard setting means is m use.

In order to produce an odd or irregular setting of the trimming knife, the slide 2 is adjusted to the nearest standard setting by means of the pin 15 which is inserted into the appropriate registering apertures corresponding to that setting, the clamping screw 20 being at this time loose in order that the rod 16 may move freely in the collar. 1 the slide has been brought to the st setting which is nearest to the odd or til 1 lar setting desired, the clamping screw 20 is tightened to lock the collar 17 immovably on the rod 16, and the pin 15 is then removed. The nut 22 of the auxiliary setting means is then turned in the appropriate direction to a point where the trimming knife will occupy the desired position, the setting of the knife by this auxiliary setting means being facilitated'by reference to the graduated scale and indicator. To obtain a standard setting of the mechanism, it is only necessary to loosen the clampingscrew to permit the collar 17 to move longitudinally on the rod 16, and to employ thepin 15 in.

the manner hereinbefore described.

The cylindrical bearings provided by the present invention avoid the expense of usmg gibs to take up play, due to inaccuracy of workmanship, and they also avoid extremely close work in fitting the slides, these bearings being not only inexpensive to make and fit, but by using a plurality of these bearings arranged in suitable relation, they cooperate to prevent play or deflection between the slide and its support and permit- .and slidably guiding the latter at three symmetrical points.

3. Slug-trimming mechanism for line casting machines embodying trimming knives,

a support, a slide adjustable relatively to the support and carrying one of the knives,

laterally spaced cylindrical pins interposed between said supportand slide and guiding the latter for movement only in the direction of its adjustment, a single cylindrical pin arranged longitudinally beyond the pins first mentioned, and means cooperative with said single pin 'for setting the slide relatively to said support.

4. Slug-trimming mechanism for line casting machines embodying trimming knives, a support, a slide carrying one of the knives and adjustable relatively to the support, laterally spaced cylindrical pins slidably connecting said support and slide, and a pin arranged longitudinally beyond the pins first mentioned and also slidably. connecting the support and slide.

5. Slug-trimming mechanism for line casting machines embodying trimming knives, a member carrying one of the knives, means for positioning said member at different standard settings, including means foradjusting the knife thereon into parallelism with the cooperative knife, and independent auxiliary means for positioning the member at any desired intermediate setting.

6. Slug-trimming mechanism for line casting machines embodying relatively adjustable trimming knives, means for relatively adjusting one of the knives to different standard settings, and single independent auxiliary means operative at will for relatively adjusting said knife to any desired intermediate setting.

7. Slug-trimming mechanism for line casting machines embodying cooperative trimming knives, and two independent setting devices for one of the knives, one adapted for standard settings, and the other for intermediate settings.

8. Slug-trimming mechanism for line castingmachines embodying trimming knives,

a support, a slide carrying one of .said knives and adjustable relatively to said support, means for positioning the slide at different standard settings, and auxiliary knife-setting means between said support and slide'embodying an adjusting device, and a coupling for rendering the auxiliary adjpsting device operative or inoperative at w1 9. Slug-trimming mechanism for line casting machines embodying relatively adjustable trimming knives, a mounting for the knives embodying a supporting member, and an adjusting member movable relatively to the support and carrying one of the knives, means for positioning the adjusting member at different standard settings, and auxiliary knife-setting means embodying an adjusting device connected to one of said members, and a coupling for connecting and disconnecting said adjusting device with respect to the other member. 7

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

' WILLIAM E. BERTRAM. 'Witnesses:

J. ARCH MEARS, I O. C. Hum. 

